Re: [TowerTalk] Horizontal Loops

[Paul Carr <paulcarr@barrow.com>]

Tim:

Take a look at this link about HOHPL's.  You might also want to take a 
look at the N4PC loop.

http://www.cebik.com/atl1.html

Paul
WL7PC

Tim Makins, EI8IC wrote:

> So, if the loop is big enough, and has the right angles, it becomes a useful
> DX antenna ? The next question would have to be: How do you work out the
> required angles ?
>
> I was just wondering what kind of wire antenna for DX might be useful if I
> put up poles at the 4 corners of an acre of land.
>
> 73s Tim EI8IC
>
>
> ----- Original Message ----- 
> From: "Tom Rauch" <w8ji@contesting.com>
> To: "Tim Makins, EI8IC" <contesting@eircom.net>; "TowerTalk"
> <towertalk@contesting.com>
> Sent: Sunday, August 15, 2004 11:12 AM
> Subject: Re: [TowerTalk] Horizontal Loops
>
>
>  
>
> > > If a folded dipole performs like a normal dipole, why
> > >      
> > doesn't a horizontal
> >    
> >
> > > loop perform like a rhombic ?
> > >      
> > Because a Rhombic is diamond-shaped uni- or bi-directional
> > antenna normally more than 2 WL on a leg and has the angles
> > adjusted so the lobes from all four sides align at a low
> > wave angle.
> >
> > A loop generally has no particular adjustment of angles or
> > length.
> >
> > A Rhombic also has very poor efficiency along with many
> > spurious lobes, and so is not really a very high gain
> > antenna for the physical area. The big Rhombic at ARRL HQ
> > for example was reported to have about the same signal as a
> > three element monoband yagi. They do however produce useable
> > patterns over very wide bandwidths.
> >
> > 73 Tom
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
> >    
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
>  
>
> > _______________________________________________
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> >
> >    
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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>
>  

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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